Stefan: You smile. He loves seeing your smile and you being happy.
Damon: When you dance. He loves seeing your body sway to the music and he dances with you often.
Elijah: You comfort people. He loves seeing the good in you and the way your so comforting and sweet.
Klaus: You cuddle him. He loves when you cuddle him because he loves being close to you.
Kol: When you steal his clothes. He thinks you look sexy in his clothes.
Kai: When you laugh. He loves hearing your laugh he finds it really attractive.
Jeremy: When your badass. He loves seeing you fight back but when things get to bad he immediately drags you out of it.
Enzo: When you blush. He loves the effect he has on you when he makes you blush.